Year	Number
2004-01-01	210
2005-01-01	229
2006-01-01	236
2007-01-01	232
2008-01-01	228
2009-01-01	223
2010-01-01	212
2011-01-01	206
2012-01-01	171
2013-01-01	160
2014-01-01	154
2015-01-01	148
2016-01-01	140